Steam-radiator



(No Model.)

- T. L. MGKEEN.

i STEAMHRADIATOR. N0. 316,284.

P asenimd Apr.' 21, 1885.

inI E WTNEssBs:

AT TORNBYS.

"NITEvk -TATES PArnNr rif-fiero* STEAM-RADIATOR.

SPECIFICATION forming part of Letters Patent No. 316,284, dated April21, 1885. Application filed December 22, 1884. v(No model.)

To @ZZ whom/.it mayconcern:

Be it knownthat I, THOMAS L. MOKEEN, a citizen of the UnitedStates, anda resident of Easton, in the kcounty of Northampton and State ofPennsylvania, have invented certain new and useful Improvements inSteam-Radiators; and l do hereby declare that the following is a full,clear,'and exact description of the invention, which will enable othersskilled in the art to which it appertains to make and use vthe same,reference being had to the accompanying drawings, which form a part ofthis specification, and in which- Figure 1 is a vperspective view of myimproved valve for steam-radiators, and Fig. 2 is a vertical sectionalview showing the same applied in position 4'for operation.

The same letters refer to the same parts in both the figures.

This invention relates to valves for steamradiators; and it has for itsobject to provide an automatic or self-acting valve which,while it shalloffer no obstruction to the escape of cold air, shall be automaticallyclosed so as to prevent the escape of steam as soon as the latter entersthe radiator, but which may, however, be operated so asto admit oftheescape of portions of the steam, and in such a manner as to avoid anypossibility of scalding or otherwise injuring the hand of the operator.

With these ends in view the invention consists in the improvedconstruction and arrangement of parts, which will be hereinafter fullydescribed, and particularly pointed out in the claim.

In the drawings hereto annexed, A designates the steam-pipe of aradiator to which my invention is applied, and the upper end of which isprovided with a cap, B, having a central perforation, O, surrounded byan upwardly-extending conical valveseat, D.

Secured to -the under side of the cap B, and extending downwardlythrough the steampipe A, are a pair of -parallel rods, E E, the lowerends of which are connected bya crosspiece, F, having a screw-threadedopening, G, to receive the lower end of the valve rod or stem H,which isfitted loosely in and extends downwardly through the opening C in thecap 5o B, and is providedv at its upper end with an inverted conicalcap, I, adapted to fit tightly over the valve-seat D.

The upper end of the valve-stem is provided above the cap or valve Iwith a button or handle, K,whichmay be made ofwood or of some othersuitable non-conducting material, so as to enable the valve-stem to beconveniently handled without danger of scalding the lingers byradiating'heat.

The connecting-rods E E are to be made of 6o some metalsuch asbrass-which is considerably expanded by the application of heat, whilethe valve rod or stem H is made of some less expansive material-such asiron. It follows that the valve-cap being normally arranged a slightdistance above its seat, the admission of steam into the radiator willcause the expansion of the rods E E, thereby tightening the valveagainst its seat and preventing the escapeof the steam. Vhen the radi-7o ator cools, the valve is' by reverse action automatically opened, soas to admit cold air. When, during the presence of steam in theradiator, it is desired to --permit any portion of the same to escape,this may be effected by partly opening the valve by unscrewing thevalve-stem, when the escaping steam will strike the under invertedconical portion of the valve so as to be deflected outwardly andl escapeout before it can' scald'or injure the fingers of the hand by which thevalve is operated.

From the foregoing description, taken in connection with the drawingshereto annexed, the operation and advantages of this invention will bereadily understood.

The construction is simple. It may be easily applied to steam-radiatorsof ordinary construction, and the operation, except when it is desiredto cause the escape of steam, is en tirely automatic.

Having thus described my invention, Iclaim and desire to secure byLetters Patent of the United Statesj In a valve for steam-radiators, thecombi- 95 nation, with a cap having a conical seat provided with averticalperforation, and having downwardly-extending rods` connected attheir lower ends by a cross-piece having a screwthreaded perforation,lof a valve-stem conloo struoted of less expansive metal than the sup-lIn testimony that I claim the foregoing as porting rods, having itslower end sorew- .luy own I have hereunto affixed my signature threadedand adjusted in the eonneetingin presence of two Witnesses.

piece of the latter, and provided at its upper THOMAS L. MCKEEN. 5 endwith an inverted conical valve, and with Vitnesses:

anon-conducting handle, substantially as and FLORENCE B. NOBLE,

for the purpose herein set forth. JOHN S. NOBLE.

